syntax = "proto3";
package container;
option go_package = "github.com/nspcc-dev/neofs-proto/container";

import "container/types.proto";
import "github.com/nspcc-dev/netmap/selector.proto";
import "github.com/gogo/protobuf/gogoproto/gogo.proto";

option (gogoproto.stable_marshaler_all) = true;

// Container service provides API for manipulating with the container.
service Service {
    // Put request proposes container to the inner ring nodes. They will
    // accept new container if user has enough deposit. All containers
    // are accepted by the consensus, therefore it is asynchronous process.
    rpc Put(PutRequest) returns (PutResponse);

    // Delete container removes it from the inner ring container storage. It
    // also asynchronous process done by consensus.
    rpc Delete(DeleteRequest) returns (DeleteResponse);

    // Get container returns container instance
    rpc Get(GetRequest) returns (GetResponse);

    // List returns all user's containers
    rpc List(ListRequest) returns (ListResponse);
}

message PutRequest {
    // MessageID is a nonce for uniq container id calculation
    bytes MessageID            = 1 [(gogoproto.customtype) = "MessageID", (gogoproto.nullable) = false];

    // Capacity defines amount of data that can be stored in the container (doesn't used for now).
    uint64 Capacity            = 2;

    // OwnerID is a wallet address
    bytes OwnerID              = 3 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false];

    // Rules define storage policy for the object inside the container.
    netmap.PlacementRule rules = 4 [(gogoproto.nullable) = false];

    // Signature of the user (owner id)
    bytes Signature            = 5;

    // TTL must be larger than zero, it decreased in every neofs-node
    // Deprecated: will be replaced with RequestMetaHeader (see develop branch)
    uint32 TTL                 = 6;
}

message PutResponse {
    // CID (container id) is a SHA256 hash of the container structure
    bytes CID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false];
}

message DeleteRequest {
    // CID (container id) is a SHA256 hash of the container structure
    bytes CID       = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false];

    // TTL must be larger than zero, it decreased in every neofs-node
    // Deprecated: will be replaced with RequestMetaHeader (see develop branch)
    uint32 TTL      = 2;

    // Signature of the container owner
    bytes Signature = 3;
}

// DeleteResponse is empty because delete operation is asynchronous and done
// via consensus in inner ring nodes
message DeleteResponse { }


message GetRequest {
    // CID (container id) is a SHA256 hash of the container structure
    bytes CID  = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false];

    // TTL must be larger than zero, it decreased in every neofs-node
    // Deprecated: will be replaced with RequestMetaHeader (see develop branch)
    uint32 TTL = 2;
}

message GetResponse {
    // Container is a structure that contains placement rules and owner id
    container.Container Container = 1;
}

message ListRequest {
    // OwnerID is a wallet address
    bytes OwnerID = 1 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false];

    // TTL must be larger than zero, it decreased in every neofs-node
    // Deprecated: will be replaced with RequestMetaHeader (see develop branch)
    uint32 TTL    = 2;
}

message ListResponse {
    // CID (container id) is list of SHA256 hashes of the container structures
    repeated bytes CID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false];
}